30-year, fixed-rate mortgage: Averaging 4.60 percent this week, it was down slightlyfrom last week’s 4.61 percent average. Last year at this time, 30-year rates averaged 4.84 percent. The 30-year fixed rate mortgage hasn’t been under this week’s 4.60 percent average since early December 2010 when it fell to 4.46 percent.

15-year, fixed-rate mortgage: Averaging 3.78 percent this week, it also was down from last week’s 3.80 percent average. Last year at this time, the 15-year fixed-rate mortgage averaged 4.21 percent. It has not been under this week’s 3.78 percent average since late November 2010 when it fell to 3.77 percent.

5-year adjustable-rate mortgage: Averaging 3.41 percent this week, it was down from last week’s 3.48 percent average. A year ago at this time, the 5-year ARM averaged 3.97 percent.